City Light Testing Distribution System in Shoreline & Lake Forest Park

Distribution Automation Area Map

Seattle City Light will continue testing automated switching technology in Shoreline and Lake Forest Park that is designed to speed the restoration of service when a power line is damaged.

This technology, also known as distribution automation, gives City Light the ability to actively monitor and manage its system in real time. When outages occur, the system will isolate the affected circuit and re-route power to restore service to the unaffected areas. It will speed the utility’s response to outages and incidents, saving time and money while improving customer service.

In April, crews installed advanced power line switches, electronic controls and fiber optic cable along two major power lines in Shoreline and Lake Forest Park. From June 1-5, crews will program and test the equipment to ensure that the distribution system is functional. Delivery of electricity will not be interrupted by the work.

Daily work hours are planned Monday through Friday from 8:30 a.m. to 5:00 p.m. Crews may be working beyond these hours, if necessary.

This project is expected to be completed by early July.  During field testing, customers and businesses should expect some noise as well as some minor traffic and parking impacts in the immediate work area.

For more information about this project and other City Light construction projects, please visit

Seattle City Light is the 10th largest public electric utility in the United States. It has some of the lowest cost customer rates of any urban utility, providing reliable, renewable and environmentally responsible power to nearly 750,000 Seattle area residents. City Light has been greenhouse gas neutral since 2005, the first electric utility in the nation to achieve that distinction.